I have tried a few. some have died from weather and some have been passed on b/c they changed to orange. The only brug that blooms yellow and stays yellow for me is DreamWorks. Would it have something to do with soil, light?
There's gotta be a yellow out there. I need it!

Hey there to you. I went to Alice and got Becca Lynn and Dbl Lucifer cuttings. My pinks are some shade of pink, white is white, orange is orange. It's only the yellows that vary too much. Oh well, maybe I've solved the problem.

Nery - I threw a piece of my Dr. Seuss that broke off (it's green but figured what the heck...I'll try) in my newly made bubbler. Tonight it appeared to be getting those nubbies. If it roots - I'm happy to send your way if you'd like???